* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  min-width: 320px;
  max-width: 750px;
  background-color: #F2F4F7;
  margin: 0 auto;
}
a {
  text-decoration: none;
}
ul {
  list-style: none;
}
.header {
  height: 12vw;
  line-height: 12vw;
  background-color: #fff;
  font-size: 4.8vw;
  color: #1C1C1C;
  text-align: center;
  border-bottom: 1px solid #EAEAEA;
}
